Corner-falling-preventing hinge structure
By increasing the contact area and adding a bend in the hinge structure, the problem of insufficient support force in existing hinges is solved, achieving higher stability and durability, preventing cabinet doors from chipping at the corners, and extending their service life.
Patent Information
- Application Number
- CN202423088518.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-14
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-14
AI Technical Summary
The support of existing hinge structures mainly relies on the contact between the two hinge mounting surfaces, resulting in a small contact area and insufficient support. This is especially true when the cabinet door is large or heavy, as it is prone to corner slippage and sagging, affecting the normal use and safety of the cabinet.
A hinge structure to prevent corner loss is designed. By setting a polygonal cavity on the first hinge and adapting it to the second hinge, the contact area is increased. Bending and bevels are set on the side wall of the hinge to enhance the support effect. At the same time, a pivot pin and a snap ring are used for fixed connection.
Without changing the hinge length, the hinge's support stability and structural strength are significantly improved, preventing cabinet doors from chipping at the corners, reducing the risk of wear and loosening, and extending its service life.
Smart Images
Figure CN223647615U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of hinge structure technology, and relates to an anti-corner-drop hinge structure. Background Technology
[0002] A server rack mainly consists of a rack body and rack doors. The rack body supports and protects the internal equipment, while the rack doors protect the internal equipment from dust, moisture, and other potential damage. Hinges, as connecting components between the rack body and rack doors, tightly connect the two together. Through the connection of hinges, the rack doors can be firmly installed on the rack body and will not easily fall off due to external forces.
[0003] The support of existing hinges mainly relies on the contact between the two hinge mounting surfaces. This design has the problems of small contact area and insufficient support force. Especially when the cabinet door is large or heavy, it is more likely to cause the cabinet door to chip, sag, be difficult to open or close, or even get stuck. This not only affects the normal use of the cabinet, but may also damage the equipment inside the cabinet, reducing its safety and reliability. Utility Model Content
[0004] The purpose of this utility model is to provide a hinge structure that prevents corner breakage. Without changing the length of the pivot, the structural design increases the contact area of the hinge engagement, solving the technical problem that the support of existing hinges mainly depends on the contact between the two hinge assembly surfaces, resulting in a small contact area and insufficient support.
[0005] To solve the above technical problems, the present invention adopts the following technical solution: an anti-fall-off hinge structure includes: a pivot pin, a first hinge, and a second hinge; the first hinge is fixedly installed on the cabinet body, the second hinge is fixedly installed on the cabinet door, the first hinge is provided with a polygonal cavity, one side of the second hinge is hinged to one side of the first hinge and installed in the polygonal cavity, the polygonal cavity is adapted to the second hinge, and the pivot pin passes through the second hinge and is detachably connected to the first hinge.
[0006] Furthermore, it also includes a retaining ring, which is sleeved on the pin near the upper or lower end of the cabinet body.
[0007] Furthermore, the sidewall of the second hinge is composed of an upper end face, a contact surface, and a lower end face. A second hinge inclined surface is provided at the connection between the upper end face and the contact surface, and a second hinge inclined surface is provided at the connection between the contact surface and the lower end face.
[0008] Furthermore, the angle between the inclined surface of the second hinge and the contact surface of the second hinge is 90-150°.
[0009] Furthermore, a second hinge bend is provided on the upper end face of the second hinge near the first hinge; a second hinge bend is provided on the lower end face of the second hinge near the first hinge; the second hinge bend is fixedly connected to the second hinge.
[0010] Furthermore, the sidewall of the first hinge is composed of a first end face, a second end face, a third end face, and a fourth end face. A first hinge slope is provided at the connection between the first end face and the second end face, and a first hinge slope is provided at the connection between the second end face and the third end face. The first end face and the third end face are arranged opposite to each other, and the second end face and the fourth end face are arranged opposite to each other.
[0011] Furthermore, the angle between the first end face of the first hinge and the inclined surface of the first hinge is 90-150°, and the angle between the second end face of the first hinge and the inclined surface of the first hinge is 90-150°.
[0012] Furthermore, the first end face, the first hinge inclined surface, the second end face, the third end face and the fourth end face of the first hinge inclined surface are connected end to end in sequence.
[0013] Furthermore, a first hinge bend is provided on the first end face of the first hinge near the second hinge, and a first hinge bend is provided on the third end face of the first hinge near the second hinge; the first hinge bend is fixedly connected to the first hinge.
[0014] Furthermore, the assembly gap between the contact surface of the second hinge and the second end face of the first hinge is 0.5-1mm; the assembly gap between the second hinge inclined surface of the second hinge and the first hinge inclined surface of the first hinge is 0.5-1mm; and the assembly gap between the lower end face of the second hinge and the third end face of the first hinge is 0.5-1mm.
[0015] Compared with the prior art, the present invention has the following beneficial technical effects:
[0016] This utility model discloses an anti-fall-off hinge structure. The polygonal cavity of the first hinge increases the contact area of the side wall of the second hinge when the second hinge is closed, effectively enhancing the supporting effect, improving the stability of the connection and the strength of the entire structure.
[0017] This utility model discloses an anti-corner-dropping hinge structure, wherein a second hinge bend is provided on the side wall of the second hinge, and a first hinge bend is provided on the side wall of the first hinge. The first hinge bend and the second hinge bend are adapted to each other, providing a second support point when the cabinet door is subjected to a large load, thus preventing corner drop.
[0018] This utility model discloses a hinge structure to prevent corner loss. The axle pin passes through the circular through holes in the side walls of the first hinge and the second hinge for fixed connection. In addition, a retaining spring is provided on the axle pin to limit its movement and prevent the axle pin from popping upward. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the anti-fall-off hinge structure of this utility model;
[0021] Figure 2 This is a top view of an anti-fall-off hinge structure according to the present invention;
[0022] Figure 3 This is a schematic diagram of the structure of the lower cover of the pressure plate from a first perspective in an embodiment of this utility model.
[0023] Figure label:
[0024] 1-Pin; 2-First hinge; 21-First hinge bend; 22-First hinge slope; 3-Second hinge; 31-Second hinge bend; 32-Second hinge slope; 4-Snap ring. Detailed Implementation
[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0026] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, such as a process, method, system, product, or apparatus comprising a series of steps or units, are not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0027] The present invention will now be described in further detail with reference to the accompanying drawings:
[0028] Example 1
[0029] This utility model provides a hinge structure to prevent corner breakage, such as Figure 1 As shown, it includes a pivot pin 1, a first hinge 2, and a second hinge 3; the first hinge 2 is fixedly installed on the cabinet body, and the second hinge 3 is fixedly installed on the cabinet door. The first hinge 2 is provided with a polygonal cavity. One side of the second hinge 3 is hinged to one side of the first hinge 2 and installed in the polygonal cavity. The polygonal cavity is adapted to the second hinge 3. The pivot pin 1 passes through the second hinge 3 and is detachably connected to the first hinge 2.
[0030] Specifically, an anti-fall-off hinge structure consists of a pivot pin 1, a first hinge 2, a second hinge 3, and a retaining spring 4. For example... Figure 1 As shown, a circular through hole is provided on the right side of the first hinge 2 and a circular through hole is provided on the right side of the second hinge 3. The circular through holes on the first hinge 2 and the second hinge 3 are the same size and are compatible with the diameter of the shaft pin 1.
[0031] The first hinge 2 has a polygonal cavity on the side facing the second hinge 3. Two first through holes are arranged vertically within the cavity. A connector passes through the first through holes from the outside in and is threadedly connected to the main body of the cabinet. Here, the connector can be a bolt or screw, and its outer surface is threaded. Besides being threaded to the main body of the cabinet (i.e., detachable), the first hinge 2 can also be welded.
[0032] The second hinge 3 has two second through holes in the vertical direction. The connector passes through the second through holes from the outside to the inside and is threaded to the cabinet door. Similar to the first hinge 2, the second hinge 3 and the cabinet door can be threaded or welded, depending on the actual situation.
[0033] After the first hinge 2 is fixedly connected to the cabinet body and the second hinge 3 is fixedly connected to the cabinet door, the pivot pin 1 passes through the circular through hole on the first hinge 2 and the circular through hole on the second hinge 3 to hinge the second hinge 3 to the first hinge 2.
[0034] The retaining ring 4 is sleeved on the pivot pin 1. If the anti-drop hinge structure is installed at the upper end of the cabinet body, the retaining ring 4 is installed at the upper end of the second hinge 3; if the anti-drop hinge structure is installed at the lower end of the cabinet body, the retaining ring 4 is installed at the lower end of the second hinge 3. Figure 1 As shown.
[0035] The retaining ring 4 acts as a limiter, preventing the pivot pin 1 from accidentally popping out, thus reducing the risk of the cabinet door opening or closing suddenly. Furthermore, the connection between the pivot pin 1 and the retaining ring 4 reduces wear and loosening of the first hinge 2 and the second hinge 3, extending their service life.
[0036] like Figure 1 As shown, the sidewall of the second hinge 3 consists of an upper end face, a contact surface, and a lower end face in a clockwise direction. A second hinge inclined surface 32 is provided at the connection between the upper end face and the contact surface, and at the connection between the contact surface and the lower end face. The angle between the upper end face and the second hinge inclined surface 32 is 90-150°, the angle between the second hinge inclined surface 32 and the contact surface is 90-150°, and the angle between the second hinge inclined surface 32 and the lower end face is 90-150°.
[0037] like Figure 3 As shown, when the second hinge 3 is closed with the first hinge 2, the inclined surface 32 of the second hinge can increase the contact area of the second hinge 3, provide support, and improve the stability of the connection.
[0038] like Figure 2 As shown, a second hinge bend 31 is provided on the upper end face of the second hinge 3 near the side of the first hinge 2; a second hinge bend 31 is provided on the lower end face of the second hinge 3 near the side of the first hinge 2; the second hinge bend 31 is welded to the second hinge 3, or the second hinge bend 31 and the second hinge 3 are an integral structure.
[0039] A first hinge bend 21 is provided on the first end face of the first hinge 2 near the second hinge 3, and a first hinge bend 21 is provided on the third end face of the first hinge 2 near the second hinge 3; the first hinge bend 21 is welded to the first hinge 2, or the first hinge bend 21 and the first hinge 2 are an integral structure.
[0040] The first hinge bend 21 has a chamfer at the entrance, which ensures that the second hinge 3 smoothly enters the polygonal cavity inside the first hinge 2 when the second hinge 3 moves towards the first hinge 2 to merge.
[0041] The first hinge bend 21 and the second hinge bend 31 not only increase the contact area but also enhance the structural strength of the hinges to a certain extent. The first hinge bend 21 and the second hinge bend 31 can withstand greater tensile and compressive forces, making the first hinge 2 and the second hinge 3 more robust and durable when bearing the weight of the cabinet door and the forces during opening and closing.
[0042] like Figure 3 As shown, after the second hinge 3 and the first hinge 2 are combined, an assembly gap A is left between the contact surface of the second hinge 3 and the second end face of the first hinge 2, where the assembly gap A is 0.5-1mm. An assembly gap B is left between the second hinge slope 32 of the second hinge 3 and the first hinge slope 22 of the first hinge 2, where the assembly gap B is 0.5-1mm. An assembly gap C is left between the lower end face of the second hinge 3 and the third end face of the first hinge 2, where the assembly gap C is 0.5-1mm.
[0043] When the cabinet door is overloaded, it will tilt. The second hinge slope 32 and the first hinge slope 22 can provide side support. By increasing the contact area, the cabinet door will be prevented from tilting. The assembly gaps A, B, and C can be adjusted according to the load size.
[0044] In summary, an anti-fall-off hinge structure, without changing the pivot length, increases the hinge contact area by adding a bend to the side wall of the first hinge 2, which significantly improves the hinge's support stability for the cabinet door. Adding the second hinge bevel 32 and the first hinge bevel 22 reduces the pressure they bear, lowering the risk of deformation or damage due to excessive local pressure.
[0045] The first hinge bend 21 and the second hinge bend 3 are provided with beveled edges, which can provide a second support point when the cabinet door falls while it is closed. The second support point can effectively prevent the cabinet door from falling further and play a role in preventing corner drop.
[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.
Claims
1. A hinge structure to prevent corner breakage, characterized in that: Includes a pivot pin (1), a first hinge (2), and a second hinge (3); The first hinge (2) is fixedly installed on the cabinet body, and the second hinge (3) is fixedly installed on the cabinet door. The first hinge (2) has a polygonal cavity. One side of the second hinge (3) is hinged to one side of the first hinge (2) and installed in the polygonal cavity. The polygonal cavity is adapted to the second hinge (3). The pin (1) passes through the second hinge (3) and is detachably connected to the first hinge (2).
2. The anti-fall-off hinge structure according to claim 1, characterized in that: It also includes a retaining ring (4), which is sleeved on the pin (1) near the upper or lower end of the cabinet body.
3. The anti-fall-off hinge structure according to claim 1, characterized in that: The sidewall of the second hinge (3) is composed of an upper end face, a contact surface and a lower end face. A second hinge inclined surface (32) is provided at the connection between the upper end face and the contact surface, and a second hinge inclined surface (32) is provided at the connection between the contact surface and the lower end face.
4. The anti-fall-off hinge structure according to claim 3, characterized in that: The angle between the contact surface of the second hinge inclined surface (32) and the second hinge (3) is 90-150°.
5. The anti-fall-off hinge structure according to claim 1, characterized in that: The upper end face of the second hinge (3) is provided with a second hinge bend (31) on the side close to the first hinge (2); The second hinge (3) has a second hinge bend (31) on the side of the lower end face close to the first hinge (2); The second hinge bend (31) is fixedly connected to the second hinge (3).
6. The anti-fall-off hinge structure according to claim 1, characterized in that: The sidewall of the first hinge (2) is composed of a first end face, a second end face, a third end face and a fourth end face. A first hinge slope (22) is provided at the connection between the first end face and the second end face. A first hinge slope (22) is provided at the connection between the second end face and the third end face. The first end face and the third end face are arranged opposite to each other. The second end face and the fourth end face are arranged opposite to each other.
7. The anti-fall-off hinge structure according to claim 5, characterized in that: The angle between the first end face of the first hinge (2) and the inclined surface of the first hinge (22) is 90-150°, and the angle between the second end face of the first hinge (2) and the inclined surface of the first hinge (22) is 90-150°.
8. The anti-fall-off hinge structure according to claim 7, characterized in that: The first end face, the first hinge inclined surface (22), the second end face, the third end face and the fourth end face of the first hinge inclined surface (22) are connected end to end in sequence.
9. The anti-fall-off hinge structure according to claim 1, characterized in that: The first end face of the first hinge (2) is provided with a first hinge bend (21) on the side near the second hinge (3), and the third end face of the first hinge (2) is provided with a first hinge bend (21) on the side near the second hinge (3). The first hinge bend (21) is fixedly connected to the first hinge (2).
10. The anti-fall-off hinge structure according to claim 8, characterized in that: The assembly gap A between the contact surface of the second hinge (3) and the second end face of the first hinge (2) is 0.5-1mm; the assembly gap B between the second hinge slope (32) of the second hinge (3) and the first hinge slope (22) of the first hinge (2) is 0.5-1mm; the assembly gap C between the lower end face of the second hinge (3) and the third end face of the first hinge (2) is 0.5-1mm.